modbus_tcp

Make the tcp_pcb a global static variable

project/Core/Src/modbus_tcp.c

@@ -30,6 +30,8 @@
 char registers[MAX_REG];
 static char* TAG = "Modbus_TCP"; // Tag used in logs
 
+static struct tcp_pcb* modbus_pcb;
+
 // Functions
 static err_t modbus_incoming_data(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err);
 static err_t modbus_accept(void* arg, struct tcp_pcb* pcb, err_t err);
@@ -162,7 +164,6 @@ static err_t modbus_accept(void* arg, struct tcp_pcb* pcb, err_t err) {
  * @brief Initializes the modbus tcp
  */
 void modbus_init(void) {
-    struct tcp_pcb* modbus_pcb;
     LOG_INFO(TAG, "Initializing\n");
     modbus_pcb = tcp_new();                        // Creating a new tcp pcb
     tcp_bind(modbus_pcb, IP_ADDR_ANY, MODBUSPORT); // Bind the modbus_pcb to port 502